Wrench.



PATENTED SEPT. 1, 1903. A. P. MILLER.

WRENCH.

APPLICATION FILED MAR. 7, 1903.

NO MODEL.

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wj m MM 6 2 v UNITED STATES Patented September 1, 1903.

PATENT OFFICE.

AUGUSTUS PRICE MILLER, OF BALTIMORE, MARYLAND, ASSIGNOR OF ONE-HALF TOAUGUST H. BISCHOFF, OF BALTIMORE, MARYLAND.

WRENCH.

SPECIFICATION forming part of Letters Patent N 0. 737,645, datedSeptember 1, 1903.

Application filed March 7, 1903. Serial No. 146,771. (No model.)

To aZZ whom it may concern:

Be it known that I, AUGUSTUS PRICE MIL- LER, a citizen of the UnitedStates, residing at Baltimore, in the State of Maryland, have in ventedcertain new and useful Improvements in Wrenches; and I do declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to the figures of reference marked thereon, which form a part ofthis specification.

This invention relates to certain new and useful improvementsinwrenches; and ithas for its objects, among others, to provide a simple,easily-operated wrench composed of a few parts, those parts beingreadily assembled aud not liable to get out of order.

The present invention comprises in its broad sense a wrench having amovable jaw operated directly by the elongation of a spring orspring-plate which is put into motion by the movement of one handle orportion of the handle toward the other asthe same is grasped by thehand. When pressure is removed from such handle, the spring orspring-plate returns the parts to their normal position and moves themovable jaw away from its companion. No means of adjustment other thanthe said spring and movable handle are nec essary, the necessaryadjustment being obtained by manipulation of the handle.

Other objects and advantages of the invention will hereinafter appear,and the novel features thereof will be particularly pointed out in theappended claims.

The invention in its preferred form is clearly illustrated in theaccompanying drawings, which, with the numerals of reference markedthereon, form a part of this specification, and in which- Figure 1 is aside elevation of m y improved wrench. Fig. 2 is a side elevation of theshank, fixed jaw, and the handle. Fig. 3 is a similar view of themovable portion of the handle. Fig. 4: is a perspective View of themovable jaw detached. Fig. 5 is a vertical cross-section on the line 5 5of Fig. 1 looking in the direction of the arrows. Fig. 6 is an endelevation of the saddle orstirrup removed.

Fig. 7 shows in elevation the spring employed.

Like numerals of reference indicate like parts throughout the severalviews.

Referring now to the drawings, 1 designates the shank having the fixedjaw 2 and the handle portion 3.

4 is the movable handle portion pivotally mounted on the shank 1 by anysuitable means, as the screw or bolt 5, passed through the coincidentopenings 6 and 7 in the shank and the adjacent end of the movable handleportion, respectively.

The shank 1 is provided upon its inner face with a longitudinal groove8, in which is adapted to slide the projection 9 on the movable jaw 10.This movable jaw is provided with a longitudinal screw-threaded opening11, in which is received the screw-threaded end 12 of the spring 13, andupon opposite sides with openings 14 for the reception of screws oranalogous means 15, which serve to secure thereto the saddle 16, (showndetached in Fig. 6,) and the cross portion 17 of which is designed tobear upon the outer face of the shank 1, as seen clearlyin Fig. 5. Theopposite end of the spring is securely fastened, as at 18, to the innerface of the outer extremity of the fixed handle portion 3, the saidspring being humped or bent between its ends, as seen at 10, and thisportion passes laterally through a keeper 20, which may be of anysuitable construction and carried by the inner face of the movablehandle portion 4 at a point substantially midway be tween its ends. Theunder face of the shank is provided at its inner end with an enlargedopening 21, through which the spring passes and which permits of thenecessary movement of the spring as the same is elongated or contractedin the movementof the handle.

The parts are readily assembled, and the movable jaw may be easilyremoved, when desired for any purpose, by the removal of thesaddle-piece 16, which latter serves to guide the movable jawin itsmovements and prevent undue lateral movement thereof, this guiding beingin addition to the guiding movement received by the projection 9, movingin the groove 8 of the shank 1.

The operation will be apparent, the parts being in position 'seen infull lines in Fig. 1 the jaws are separated and the article to be actedupon can be readily placed therebetween, when pressure on the movablehandle sufi'icient to force it toward the fixed handle portion 3 willcause the spring to elongate and by its elongation cause the movable jawto approach the fixed jaw 2, the parts assuming the position indicatedby dotted lines in Fig. 1 or a position intermediate that indicated bythe dotted and full lines, according to the amount of pressure broughtto bear ent consider preferable, it is evident that the same is subjectto changes, variations, and modifications without departing from thespirit of the invention or sacrificing any of its advantages, and Itherefore do not wish to be restricted to the details of constructionherein disclosed, but reserve the right to make such changes,variations, and modifications as come properly within the scope of theprotection prayed.

What I claim as new is-- 1. In a wrench, a shank with fixed jaw, amovable jaw and longitudinally-expansible compressible integral meanshaving one end fixed with relation to the movable jaw and the other endconnected to the movable jaw to actuate the same by compression of saidmeans.

2. In a wrench, a shank with fixed jaw, a movable jaw andlongitudinally-expansible compressible integral means for actuating thelatter, said means being guided within the groove in the shank andhaving one end fixed with relation to the movable jaw and constructed toautomatically return the latter to its normal position.

3. A wrench comprising a shank, a fixed jaw and a fixed handle portion,a movable jaw, a movable handle portion, and longitudinallyexpansiblecompressible integral means having one end directly engaged with themovable jaw and the other end fixed with relation thereto, said meansbeing slidably connected with the movable handle portion and put inmotion by the compression of the handle.

4. In a wrench, a movable jaw, and a longitudinally-expansible bowedspring having one end connected with the movable jaw and the other endfixedly secured, said spring bein g longitudinally expansible andcompressible to actuate the movable jaw.

5. In a wrench, a shank having a fixed jaw and handle portion, a movablejaw, a movable handle and an interposed bowed member made longitudinallyexpansible by the movement of the movable handle and slidingly connectedtherewith'and having one end secured to the fixed handle portion.

6. In a'wrench, a shank with stationary jaw, a pivotally-mounted handle,a movable jaw and a spring-plate having one end connected with themovable jaw and the other end with the fixed handle, with anintermediate portion adapted to be actuated by the movable handle.

7. In a wrench, a stationary jaw, a shank, a fixed handle, a movablehandle, a movable jaw, a spring connected at one end with the movable'jaw and at the other end with the fixed handle and having a portionintermediate its ends movably connected with the movable handle.

'8. In a wrench, a shank with stationary jaw, a movable jaw, a fixed andmovable handle, and compressible integral means intermediate the fixedhandle .and movable jaw mounted for endwise movement and longitudinallyexpansible by the compression of the handle to actuate the movable jaw.

9. In a wrench, a shank with stationary jaw, a movable jaw, a fixed andmovable handle, and means intermediate the fixed handle and movable jawmounted for endwise movement by the compression of the handle to actuatethe movable jaw, and slidable within the shank.

10. In a wrench, a shank with fixed jaw, a movable jaw, a detachablestirrup receiving the shank, and a spring compressible for extensionlengthwise to actuate the movable aw. I

11. In a wrench, a shank with fixed jaw, a movable jaw, a detachablestirrup receiving the shank and a spring compressible for extensionlengthwise to actuate the movable jaw, and slidably connected with oneof the handles.

12. In a wrench, a shank, a rigid jaw, a movable jaw, a flexiblelongitudinally-expansible bowed member for operating the movable jaw,and means for compressing said member.

13. In a wrench, a shank, a rigid jaw, a movable jaw, a bowed springconnected at one end with the movable jaw and its other end attached tosome fixed part, and means for engaging the bowed part of the spring tocompress it and move the spring lengthwise to actuate the movable jaw.

In testimony whereof I affix my signature in presence of two witnesses.

AUGUSTUS PRICE MILLER.

Witnesses:

HARRY L. PRICE, FRANK W. GARDNER.

